Question

What is the value of a ? if 4a²-2=a²+25

Answer 1

Let's simplify and solve for a.

Starting with the given equation:

4a²-2=a²+25

Subtracting a² from both sides:

3a²-2=25

Adding 2 to both sides:

3a²=27

Dividing both sides by 3:

a²=9

Taking the square root of both sides:

a=±3

So the value of a could be either 3 or -3.

Explanation: